NLRB Privilege Ruling Limits Union Access to Attorney Documents in Information Requests

The National Labor Relations Board ruled in a recent decision that employers do not have to disclose attorney-client privileged documents when responding to union information requests, according to a Law360 Employment Authority report published September 25. The decision could reshape how unions gather evidence during contract negotiations and grievance procedures, potentially increasing litigation over what qualifies as privileged material.

NLRB Decision Establishes Privilege Shield

The Board's ruling affirms that traditional attorney-client privilege protections apply even when unions invoke their statutory right to request information from employers. Under the National Labor Relations Act, unions can compel employers to provide information relevant to collective bargaining or contract administration, but the recent decision carves out an exception for materials protected by attorney-client privilege. The Board did not specify whether work-product privilege or other common-law protections receive the same treatment, according to the Law360 report.

This ruling marks a significant development in how the NLRB balances employer confidentiality interests against union information rights. Employers frequently assert privilege when unions request internal communications, legal advice, or strategy documents related to workplace policies, discipline decisions, or contract interpretations.

Information Requests Central to Union Strategy

Unions rely on information requests as a primary tool during organizing campaigns, contract negotiations, and grievance arbitrations. When employers deny requests by claiming privilege, unions traditionally had two options: file an unfair labor practice charge with the NLRB or pursue disclosure through arbitration if a collective bargaining agreement includes information-access provisions.

The privilege ruling changes this dynamic by establishing that even if the NLRB finds information "relevant and necessary" under its existing standards, privilege claims can block disclosure. Labor attorneys expect this will lead employers to assert privilege more broadly, forcing unions to challenge each claim individually rather than obtaining blanket disclosure orders.

Union organizers frequently request copies of management emails, disciplinary records with supervisor commentary, and communications between HR departments and outside counsel. Employers often redact or withhold portions of these documents, claiming attorney involvement triggers privilege. The NLRB's decision appears to validate that approach, though the extent of the privilege shield remains unclear without details on the specific case facts.

Arbitration Disputes Likely to Increase

The ruling's impact extends beyond NLRB proceedings to labor arbitration, where arbitrators regularly face disputes over privileged information. When employers claim privilege during arbitration discovery, arbitrators must decide whether to compel production. Some arbitrators apply federal common-law privilege standards strictly, while others take a broader view of union information rights under collective bargaining agreements.

With the NLRB now signaling that privilege can override statutory information rights, employers may cite the decision when resisting arbitration subpoenas. This could push more information disputes into federal court, where unions would seek orders compelling arbitration discovery. The resulting litigation adds time and expense to grievance resolution, particularly in discharge cases where unions need personnel files and investigative records that may contain attorney communications.

Labor practitioners note that privilege fights have intensified since 2020, as more employers bring in-house or outside counsel earlier in workplace investigations. When attorneys participate in gathering witness statements or analyzing policy compliance, employers label the resulting documents as privileged. Unions counter that factual information remains discoverable even if an attorney compiled it, but the NLRB's recent decision may shift presumptions in employers' favor.

Why This Matters Now

The privilege ruling arrives as unions push for stronger disclosure rules in contract negotiations and organizing campaigns. Without access to employer documents showing how policies are applied, unions face significant disadvantages when challenging discipline, investigating discrimination, or verifying contract compliance. Employers' ability to shield more documents behind privilege claims could weaken unions' bargaining positions and make it harder to prove unfair labor practices.

The decision also creates uncertainty about how broadly privilege applies in labor disputes. If the NLRB extends the same protection to work-product privilege or other confidentiality doctrines, unions may lose access to strategic documents that reveal employer intentions during negotiations or organizing drives. Labor attorneys expect the next round of NLRB litigation will test whether the privilege shield applies to documents that mix legal advice with factual business records.

For union organizers and representatives, the immediate impact is tactical: information requests must now anticipate privilege objections and include arguments for why specific documents fall outside attorney-client protection. That means more granular requests, more litigation over document-by-document privilege claims, and longer delays in obtaining information needed to represent members effectively.